[go: up one dir, main page]

AR029968A1 - Metodo y aparato para evaluar o predecir las caracteristicas de la madera u otros materiales de madera - Google Patents

Metodo y aparato para evaluar o predecir las caracteristicas de la madera u otros materiales de madera

Info

Publication number
AR029968A1
AR029968A1 ARP010103522A ARP010103522A AR029968A1 AR 029968 A1 AR029968 A1 AR 029968A1 AR P010103522 A ARP010103522 A AR P010103522A AR P010103522 A ARP010103522 A AR P010103522A AR 029968 A1 AR029968 A1 AR 029968A1
Authority
AR
Argentina
Prior art keywords
wood
specimen
signal
characteristic
predicting
Prior art date
Application number
ARP010103522A
Other languages
English (en)
Original Assignee
Ind Res Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Res Ltd filed Critical Ind Res Ltd
Publication of AR029968A1 publication Critical patent/AR029968A1/es

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/011—Velocity or travel time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/014—Resonance or resonant frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/015—Attenuation, scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0231—Composite or layered materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0238—Wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02827—Elastic parameters, strength or force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Wood Science & Technology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

Un aparato y método para determinar una característica, tal como la rigidez de un tronco, tallo, pieza de madera u otro espécimen de madera. Un generador de onda 102 produce una senal de frecuencia variable la cual acciona un transductor 103 que está acoplado al espécimen para otorgar una onda acustica de frecuencia variable dentro del espécimen. Un censor receptor 105 detecta la onda acustica resultante y un censor transmisor detecta el envío desde el transductor 103. Una respuesta característica 109 del espécimen es determinada desde la senal del sensor receptor, la senal del censor transmisor y la senal de excitacion utilizan procesamiento de senal digital 107 y análogo 106. La característica 108 es determinada a partir de la respuesta característica 109.
ARP010103522A 2000-07-21 2001-07-24 Metodo y aparato para evaluar o predecir las caracteristicas de la madera u otros materiales de madera AR029968A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ505896A NZ505896A (en) 2000-07-21 2000-07-21 Method and apparatus for assessing or predicting characteristics of wood or other materials by varying frequency of acoustic transmitter and sensing a response

Publications (1)

Publication Number Publication Date
AR029968A1 true AR029968A1 (es) 2003-07-23

Family

ID=19928011

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP010103522A AR029968A1 (es) 2000-07-21 2001-07-24 Metodo y aparato para evaluar o predecir las caracteristicas de la madera u otros materiales de madera

Country Status (6)

Country Link
US (2) US20050011263A1 (es)
AR (1) AR029968A1 (es)
AU (2) AU8271401A (es)
CA (1) CA2415361A1 (es)
NZ (1) NZ505896A (es)
WO (1) WO2002008749A1 (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA985834B (en) * 1997-07-21 1999-01-14 Henkel Corp Method for reinforcing structural members
WO2004005879A1 (en) * 2002-07-03 2004-01-15 Midwest Research Institute Resonance test system
DE10251227B4 (de) * 2002-11-04 2005-06-02 Siemens Ag Flachlautsprecher und Verfahren zur Herstellung eines Filters dafür
US6950372B2 (en) 2002-12-05 2005-09-27 Raymarine, Incorporated Digital sounder module and method for detecting
ES2239500B1 (es) * 2003-03-07 2006-12-01 Consejo Sup. Investig. Cientificas Dispositivo para la caracterizacion de materiales por ultrasonidos con acoplamiento por gases (aire) y su aplicacion para llevar a cabo un test no destructivo para verificar la integridad de membranas porosas.
US20050216226A1 (en) * 2003-06-26 2005-09-29 Yancey Michael J Method for determining physical properties of wood
NZ536400A (en) * 2004-11-04 2007-05-31 Fibre Gen Instr Ltd Timber harvesting apparatus
WO2006069005A2 (en) * 2004-12-20 2006-06-29 Mayo Foundation For Medical Education And Research Vibroacoustic system for vibration testing
NZ545247A (en) * 2005-02-11 2007-05-31 Waratah Nz Ltd Method and apparatus for assessing or predicting the characteristics of wood
DE102005016738B4 (de) * 2005-04-11 2010-01-07 Minda Industrieanlagen Gmbh Verfahren und Vorrichtung zur zerstörungsfreien Überprüfung von Holzbauteilen
EP1934566A4 (en) * 2005-09-21 2011-09-21 Messmer Instr Ltd METHOD AND APPARATUS FOR MEASURING THE PROPERTIES OF TABLE PRODUCTS
US8662121B2 (en) * 2006-03-30 2014-03-04 Weyerhaeuser Nr Company Method for reducing warp potential within lumber derived from a raw material
GB2440555A (en) * 2006-07-31 2008-02-06 Quetra Ltd Acoustic testing of wooden elements
WO2009072968A1 (en) * 2007-12-07 2009-06-11 A-Sort Ab Method and arrangement for log classification
CN102928514B (zh) * 2012-10-14 2014-12-24 浙江农林大学 一种基于频率特征的木材应力波无损检测方法
US11668678B1 (en) 2018-09-12 2023-06-06 Bryan John Galloup Material selection system and method for constructing a musical instrument
US11162869B2 (en) 2019-09-30 2021-11-02 King Fahd University Of Petroleum And Minerals Double force two sensor vibration method
US11175263B2 (en) 2020-02-24 2021-11-16 King Fahd University Of Petroleum And Minerals Apparatus and method for generating, measuring, and evaluating vibrational modes in cylindrical objects
CN112945451B (zh) * 2021-02-20 2022-11-29 山东大学 基于非线性声调制碳纤维复合材料螺栓早期松动检测方法
US12326423B2 (en) * 2021-08-31 2025-06-10 Inner View Technologies Lp Computer-implemented processing of sound wave signals for non-destructive evaluation of wooden specimen

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US35050A (en) * 1862-04-22 Improved fire-alarm
AU471299B2 (en) * 1972-04-11 1976-04-15 Fanner Mfg. Co., The Vibration technique for rot detection inwood poles and trees
AU502728B2 (en) * 1975-06-05 1979-08-09 Fanner Pty. Ltd. Testing wooden poles
US4399701A (en) * 1980-06-03 1983-08-23 Unisearch Limited Method and means for detecting decay in wood
JPS58125431A (ja) * 1982-01-09 1983-07-26 麒麟麦酒株式会社 プラスチツク製ボトルクレ−トの不良品選別装置
DE3203619A1 (de) * 1982-02-03 1983-08-11 Michael Voit GmbH, 8671 Weißenstadt Stollmaschine
FR2554238B1 (fr) * 1983-10-28 1986-02-28 Labo Electronique Physique Appareil d'exploration de milieux par echographie ultrasonore
US5024091A (en) * 1986-03-25 1991-06-18 Washington State University Research Foundation, Inc. Non-destructive evaluation of structural members
US4722223A (en) * 1986-05-06 1988-02-02 Her Majesty The Queen In Right Of The Province Of Alberta, As Represented By The Minister Of Energy & Natural Resources Transverse vibration apparatus for grading wood panels
US4852029A (en) * 1987-06-17 1989-07-25 Accu-Tech Incorporated Automated material classification apparatus and method
US4805679A (en) * 1988-01-25 1989-02-21 Integrated Wood Research Inc. Apparatus and method for processing lumber
US4941357A (en) * 1988-12-23 1990-07-17 Weyerhaeuser Company Method for estimating the strength of wood
CA1322282C (en) * 1989-09-29 1993-09-21 Wing-Cheong Lau Non-destructive method and apparatus for checking the quality of manufactured wood panels
US5121629A (en) * 1989-11-13 1992-06-16 E. I. Du Pont De Nemours And Company Method and apparatus for determining particle size distribution and concentration in a suspension using ultrasonics
US5257544A (en) * 1992-01-22 1993-11-02 The Board Of Trustees Of The Leland Stanford Junior University Resonant frequency method for bearing ball inspection
US5396799A (en) * 1992-07-13 1995-03-14 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for in situ evaluation of wooden members
US5408880A (en) * 1993-06-10 1995-04-25 Quatro Corporation Ultrasonic differential measurement
US5699143A (en) * 1994-08-18 1997-12-16 Eastman Kodak Company Method and apparatus for writing onto a photosensitive material using a modulated light beam
US5804728A (en) * 1994-09-07 1998-09-08 The Regents Of The University Of California Method and apparatus for non-intrusively detecting hidden defects caused by bio-deterioration in living trees and round wood materials
CA2169307C (en) * 1994-12-12 2003-10-14 David A. Hutchins Non-contact characterization and inspection of materials using wideband air coupled ultrasound
US5621172A (en) * 1995-04-03 1997-04-15 State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Method and apparatus for testing material strengths
SE511602C2 (sv) * 1996-06-17 1999-10-25 Dynalyse Ab Förfarande jämte anordning för oförstörande klassificering av företrädesvis långsträckta och/eller skivformade objekt
US6026689A (en) * 1998-02-25 2000-02-22 Weyerhaeuser Company Log cutting optimization system
US6029522A (en) * 1998-02-26 2000-02-29 Perceptron, Inc. Ultrasonic apparatus for characterizing wooden members
US6308571B1 (en) * 1998-09-02 2001-10-30 Weyerhaeuser Company Method for determining crook potential in wood
US6831927B1 (en) * 1999-05-13 2004-12-14 Lucent Technologies Inc. Fault protection for hitless and errorless switching of telecommunications signals
US6276209B1 (en) * 1999-09-30 2001-08-21 Perceptron, Inc. System and method of assessing the structural properties of wooden members using ultrasound
US6370834B1 (en) * 2000-01-07 2002-04-16 Super Sack Mfg. Corp. Insect control for buildings

Also Published As

Publication number Publication date
AU8271401A (en) 2002-02-05
WO2002008749A1 (en) 2002-01-31
CA2415361A1 (en) 2002-01-31
AU2001282714B2 (en) 2005-10-27
NZ505896A (en) 2003-05-30
US20050011263A1 (en) 2005-01-20
US20060000281A1 (en) 2006-01-05

Similar Documents

Publication Publication Date Title
AR029968A1 (es) Metodo y aparato para evaluar o predecir las caracteristicas de la madera u otros materiales de madera
BR0114086A (pt) Sistema de seleção de som eletrônico
AR018918A1 (es) Aparato y metodo para determinar la velocidad del sonido en un gas
ATE416673T1 (de) Nichtinvasives gerät und verfahren zum fokussieren von schallwellen
ATE287527T1 (de) Anordnung und verfahren zur schwingungsprüfung mit akustischen wellen
RU2011129606A (ru) Обработка речевого сигнала
ES2123125T3 (es) Determinacion de la fatiga de un material metalico o la integridad de una junta por la medicion de factores de amortiguacion.
DE69727972D1 (de) Auswertung von ultraschallsignalen zur knochen-analyse mittels der ein messfeld darstellenden werte
ES2162292T3 (es) Amortiguador de ruido reactivo.
MX2023009827A (es) Aparato de procesamiento de ultrasonido enfocado y metodo del mismo.
ATE392187T1 (de) Lithotripter
BR0008284A (pt) Processo e aparelho para mensuração do tempo de propagação de um sinal, em particular um sinal de ultrasom
TW200718926A (en) Oscillatory wave detecting apparatus
WO2002065068A8 (en) Self-aligning ultrasonic sensor system, apparatus and method for detecting surface vibrations
Olaoye et al. Acoustic properties of Gmelina arborea (Roxb.) wood
SE0301801D0 (sv) Icke-förstörande materialprovning
MXPA05003585A (es) Metodo para reducir el ruido armonico en senales de vibracion sismica.
EP2422707A3 (en) Evaluation of reflected time-energy profile for evaluation of damping capacity, osseointegration and density
MY128384A (en) Arrangement and method for measuring the speed of sound
RU2000123377A (ru) Способ прогноза остаточного ресурса механических систем при неразрушающем анализе отклика акусто-эмиссионного излучения
JP6142489B2 (ja) 音波形信号生成装置およびプログラム
JP2021149759A (ja) 情報処理方法、情報処理システムおよびプログラム
RU2009121851A (ru) Способ просветного акустического зондирования легких
RU2001135020A (ru) Способ определения физико-механических характеристик полимерных композиционных материалов и устройство для его осуществления
NZ331527A (en) Acoustic wave testing of logs for selection of wood based on fibre characteristics

Legal Events

Date Code Title Description
FB Suspension of granting procedure